big rob Posted May 17, 2013 Share Posted May 17, 2013 (edited) Hi all, Well i bit the bullet and opened up the RH450 to carry out the repairs and guess what, it was a real nightmare...... no not really it was really easy to do, here are some photos and a guide, i hope it helps anyone trying to do the same: Tools required: Allen key set Torx bit set (got mine from screw fix £5.99) Screw driver (pozi drive small) 1: First you need to remove the 3 torx bit screws on the top and the bottom of the unit. you also need to remove the rotary knobs from the front, these simple pull off, just pull square and with medium force to remove, i did not need to wobble them. [attachment=134971:IMG_0425.JPG] 2: Then you need to remove the screws on the bottom of the unit (all of them), you will also need to remove the sticker as one is hiding under it, you do not need to remove the feet these can stay where they are. [attachment=134972:IMG_0424.JPG] 3: You can now slide the casing off to the left, do this gently as the plastic front control panel sits in a channel on the casting. [attachment=134973:IMG_0422.JPG] 4: You now need to remove the 2 allen key bolts in the black metal vented section on the right. [attachment=134974:IMG_0423.JPG] [attachment=134975:IMG_0414.JPG] 5: Now the front plastic panel can be removed. [attachment=134976:IMG_0415.JPG] [attachment=134977:IMG_0416.JPG] 6: The Memory buttons and shift buttons can be pulled off very easy and replaced now. [attachment=134978:IMG_0419.JPG] [attachment=134979:IMG_0420.JPG] 7: Once replaced put front panel back on, it is not glued in any way so easy to remove and replace. Then refit the black vented metal section and then refit the main casing and refit all of the screws removed. [attachment=134980:IMG_0421.JPG] [attachment=134981:IMG_0422.JPG] 8: The last thing to do is just push on the replacement Knobs, if yours were not broken like mine to start with then you can refit the ones you pulled off at the start, if you were careful they will not have broken. [attachment=134982:IMG_0426.JPG] There we go good as new and only took 30 mins start to finish. [attachment=134984:IMG_0428.JPG] Hope this helps Big Rob Edited May 17, 2013 by big rob Quote Link to comment Share on other sites More sharing options...
MarkBassChat Posted May 18, 2013 Share Posted May 18, 2013 Nice tutorial.It seems that previously you mentioned that you could not remove the knobs. What was the problem? Mark Quote Link to comment Share on other sites More sharing options...
hamfist Posted May 18, 2013 Share Posted May 18, 2013 Great stuff. Thanks for that Rob. Do the rotary knobs simply pull off ? Or are there any hints for that part of it ? My RH450 is new so has no issues as yet, but this could all be great info for me in the future. Quote Link to comment Share on other sites More sharing options...
big rob Posted May 18, 2013 Author Share Posted May 18, 2013 (edited) <p>The rotary knobs on the front just pull off, not that hard to do. The memory and shift buttons also just pull off. Edited May 18, 2013 by big rob Quote Link to comment Share on other sites More sharing options...
blunderthumbs Posted November 17, 2013 Share Posted November 17, 2013 Great thread. I took my RH450 head out today to rehearsal (Not used it for a few months) I noticed that the control knobs were falling off, three of them anyway. When I looked inside the knobs I noticed the little fins that grip the shaft of the potentiometer had broken and thus not gripping onto the shaft. I need to obtain some replacements from TC. Just wondering how long it will be before my buttons start showing signs of cracks and how easy it is to get new ones from TC ?? Quote Link to comment Share on other sites More sharing options...
bassfan Posted August 14, 2016 Share Posted August 14, 2016 Great 'how to' Rob, works great for the RH750 to! Thanks. Quote Link to comment Share on other sites More sharing options...
GregBass Posted August 16, 2016 Share Posted August 16, 2016 [quote name='blunderthumbs' timestamp='1384711514' post='2279804'] Great thread. I took my RH450 head out today to rehearsal (Not used it for a few months) I noticed that the control knobs were falling off, three of them anyway. When I looked inside the knobs I noticed the little fins that grip the shaft of the potentiometer had broken and thus not gripping onto the shaft. I need to obtain some replacements from TC. Just wondering how long it will be before my buttons start showing signs of cracks and how easy it is to get new ones from TC ?? [/quote] I emailed TC and a set of knobs arrived 3 days later. Quote Link to comment Share on other sites More sharing options...
bassfan Posted August 17, 2016 Share Posted August 17, 2016 I can't fault TC's customer service I emailed them on a Sunday. Full set of buttons and knobs in the post Monday 1 Quote Link to comment Share on other sites More sharing options...
number six Posted November 1, 2018 Share Posted November 1, 2018 You got in just in time, 5 buttons will cost me 50+ GBP. No TC direct contact any more, just 3rd party multi-brand company. I made fins from a biro cap and superglued the pieces in. Nothing fussy. Blue tack would probably do it. The buttons will have to stay as. 20 quid for 2 plastic buttons and an envelope - pfft. Quote Link to comment Share on other sites More sharing options...
Blink Posted November 6, 2018 Share Posted November 6, 2018 I have just purchased 6 plain knobs for my RH450 for the total posted cost of £12.48. For TC spares try Mike at electronicmusicservices.co.uk Very helpful. N Quote Link to comment Share on other sites More sharing options...
unity451 Posted February 28, 2019 Share Posted February 28, 2019 I can't see the pictures. Were they removed? Quote Link to comment Share on other sites More sharing options...
Guest gazzatriumph Posted July 25, 2022 Share Posted July 25, 2022 Hi, I need to change my preset buttons do you still have the photos. Quote Link to comment Share on other sites More sharing options...
big rob Posted July 26, 2022 Author Share Posted July 26, 2022 I dont know why the photos have disappeared not sure I still have them, will try and find them Quote Link to comment Share on other sites More sharing options...
Guest gazzatriumph Posted July 27, 2022 Share Posted July 27, 2022 23 hours ago, big rob said: I dont know why the photos have disappeared not sure I still have them, will try and find them Great info though, thanks. Quote Link to comment Share on other sites More sharing options...
big rob Posted July 27, 2022 Author Share Posted July 27, 2022 Unable to find the photos sorry, but reading the instructions I think they explain enough to do it without them. Dont be scared get that case open. Quote Link to comment Share on other sites More sharing options...
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